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Modulation Techniques

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ALSO CALLED: Digital Modulation Techniques
DEFINITION: Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulation can be applied to direct current (mainly by turning it on and off), to alternating current, and to optical signals. One can think of blanket waving as a form of modulation used in smoke signal transmission (the carrier being a steady stream of smoke). Morse code, invented for telegraphy  … 
Definition continues below.
Modulation TechniquesReports
2 Matches
Standardization and Modularity in Data Center Physical Infrastructure
sponsored by APC by Schneider Electric
WHITE PAPER: This paper examines how failure to adopt modular standardization as a design strategy for data center physical infrastructure (DCPI) is costly on all fronts, unnecessary expense, avoidable downtime, and lost business opportunity. Standardization and modularity, create wide-ranging benefits in DCPI that streamline and simplify every process.
Posted: 26 Jan 2011 | Published: 26 Jan 2011

APC by Schneider Electric

Reliability Analysis of the APC Symmetra MW Power System
sponsored by APC by Schneider Electric
WHITE PAPER: MTechnology, Inc. (MTech) performed a quantitative reliability analysis of the APC Symmetra MW UPS. The study used techniques of Probabilistic Risk Assessment (PRA) to calculate the likelihood of over 680,000 potential failure modes.
Posted: 28 Jan 2010 | Published: 28 Jan 2010

APC by Schneider Electric
2 Matches
 
MODULATION TECHNIQUES DEFINITION (continued): …  and still used in amateur radio, uses a binary (two-state) digital code similar to the code used bymodern computers. For most of radio and telecommunication today, the carrier is alternating current (AC) in a given range of frequencies. Common modulation methods include:Amplitude modulation (AM), in which the voltage applied to the carrier is varied over timeFrequency modulation (FM), in which the frequency of the carrier waveform is varied in small but meaningful amountsPhase modulation (PM), in which the natural flow of the alternating current waveform is delayed temporarily These are … 
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